Triple
T8302848
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SkyTrain Expo Line |
E194386
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Surrey Central station
Surrey Central station is a major elevated rapid transit hub on Metro Vancouver’s SkyTrain network, serving as a key access point to Surrey’s downtown core and surrounding institutions.
|
E723804
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Surrey Central station | Statement: [SkyTrain Expo Line, hasStation, Surrey Central station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Surrey Central station Context triple: [SkyTrain Expo Line, hasStation, Surrey Central station]
-
A.
Purley railway station
Purley railway station is a suburban railway station in the London Borough of Croydon that serves as a key junction and commuter hub on the Southern network in South London.
-
B.
Hounslow railway station
Hounslow railway station is a National Rail station in the London Borough of Hounslow providing suburban and commuter services on the line between central London and southwest London.
-
C.
Amersham station
Amersham station is a London Underground and National Rail station in Buckinghamshire that serves as the outer terminus of the Metropolitan line and a key commuter hub into central London.
-
D.
Staines railway station
Staines railway station is a key commuter rail hub in Surrey, England, providing regular services to London and surrounding areas.
-
E.
Chesham station
Chesham station is a London Underground station in Buckinghamshire that serves as the northernmost point of the network on the Metropolitan line.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Surrey Central station Triple: [SkyTrain Expo Line, hasStation, Surrey Central station]
Generated description
Surrey Central station is a major elevated rapid transit hub on Metro Vancouver’s SkyTrain network, serving as a key access point to Surrey’s downtown core and surrounding institutions.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Surrey Central station Target entity description: Surrey Central station is a major elevated rapid transit hub on Metro Vancouver’s SkyTrain network, serving as a key access point to Surrey’s downtown core and surrounding institutions.
-
A.
Purley railway station
Purley railway station is a suburban railway station in the London Borough of Croydon that serves as a key junction and commuter hub on the Southern network in South London.
-
B.
Hounslow railway station
Hounslow railway station is a National Rail station in the London Borough of Hounslow providing suburban and commuter services on the line between central London and southwest London.
-
C.
Amersham station
Amersham station is a London Underground and National Rail station in Buckinghamshire that serves as the outer terminus of the Metropolitan line and a key commuter hub into central London.
-
D.
Staines railway station
Staines railway station is a key commuter rail hub in Surrey, England, providing regular services to London and surrounding areas.
-
E.
Chesham station
Chesham station is a London Underground station in Buckinghamshire that serves as the northernmost point of the network on the Metropolitan line.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69ca82e613e88190bf8139669bbd0d53 |
completed | March 30, 2026, 2:04 p.m. |
| NER | Named-entity recognition | batch_69cb7e8a45348190a7895b33abcb64c9 |
completed | March 31, 2026, 7:58 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cd68c2a14c81908388ecdd22315390 |
completed | April 1, 2026, 6:49 p.m. |
| NEDg | Description generation | batch_69cd6d58032c8190ba99f78670924ae5 |
completed | April 1, 2026, 7:09 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69cd7e5be1108190afbc65b69a7700f2 |
completed | April 1, 2026, 8:21 p.m. |
Created at: March 30, 2026, 5:53 p.m.